Effect of ultraviolet aging on rheological properties of organic intercalated layered double hydroxides modified asphalt

2015 ◽  
Vol 75 ◽  
pp. 421-428 ◽  
Author(s):  
Song Xu ◽  
Jianying Yu ◽  
Canlin Zhang ◽  
Yubin Sun
2015 ◽  
Vol 49 (4) ◽  
pp. 1235-1244 ◽  
Author(s):  
Song Xu ◽  
Jianying Yu ◽  
Canlin Zhang ◽  
Tingting Yao ◽  
Yubin Sun

2018 ◽  
Vol 192 ◽  
pp. 696-703 ◽  
Author(s):  
Song Xu ◽  
Lin Dang ◽  
Jianying Yu ◽  
Lihui Xue ◽  
Changbin Hu ◽  
...  

2016 ◽  
Vol 847 ◽  
pp. 418-424
Author(s):  
Wei Wang ◽  
Jian Ying Yu ◽  
Yi Yi ◽  
Xiao Chen

Effect of three de-icing additives: NaCl, wrapped NaCl (W-NaCl) and Layered double hydroxides (LDHs) on thermo-oxidative and ultraviolet aging properties of bitumen were investigated by thin film oven test (TFOT), pressure aging vessel (PAV) and ultraviolet (UV) radiation test. The experimental result illustrated that compared with bitumen with MF, the softening point and viscosity of bitumen with NaCl and W-NaCl increased and the ductility decreased distinctly after TFOT, PAV and UV aging, indicating that NaCl and W-NaCl accelerated the aging of bitumen. However, for bitumen with LDHs, the softening point and viscosity decreased significantly, the ductility increased after aging, which demonstrated that the anti-aging properties of bitumen were improved effectively by LDHs.


Polímeros ◽  
2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Silvia Jaerger ◽  
Andreas Leuteritz ◽  
Rilton Alves de Freitas ◽  
Fernando Wypych

2018 ◽  
Vol 913 ◽  
pp. 1062-1069
Author(s):  
Min Wu ◽  
Lian Li ◽  
Bian Yang He ◽  
Jian Ying Yu

The crystal structure, microscopic morphology, particle size distribution and UV shielding properties of layered double hydroxides (LDHs) with different particle size were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), laser particle size analysis and ultraviolet and visible (UV-vis) spectrophotometer. The effects of LDHs with different particle size on the physical, rheological properties and UV aging resistance of bitumen were investigated by conventional physical properties and dynamic rheological characteristics. The results indicated that the particle size of LDHs had a little effect on the physical properties, and it had some influence on rheological properties of bitumen, but its influence on the UV aging resistance of bitumen was different significantly. When UV aging time was 9d, the viscosity aging indexes of bitumen modified by LDHs with different particle size (80nm, 115nm and 180nm) decreased by 48.2%, 58.1% and 63.8% compared with the pristine bitumen, respectively. LDHs with the particle size of 180 nm showed better improvement than other two kinds of LDHs on UV aging resistance of bitumen.


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